Anyone HEARD the qol 'signal completion' device?

Sabai,
Going by your previous postings in the thread, I would surmise that your system is pretty high end and resolving. That said, you may also like to know other aspects of my personal experience with the qol :-
1) The S/N ratio is indeed rather low as previously posted; I can hear more hiss and noise from my speakers in between tracks and during soft passages. With the qol out of the chain, the added noise was gone
2} When I cranked up the volume with the qol in place, there is a point where distortion can be easily heard and things start to sound ragged
3) Image size is quite stretched to the point of unbelievability. A glaring example is when the tenor sax is playing, it is as if I am standing at the "cusp of the crucible" so to speak, staring down into the deep belly of the sax - totally unreal
4) The bypass mode is not a true absolute bypass. Remove the qol from the chain altogether and the comparison is startling - one gets easily seduced by the immediate signal gain and think, ah, instruments have more body but take it out of the chain, and gradually crank up your system. You will realise a similar gain in instrument body but without the image stretching effect

From the patents posted previously, it would seem that the qol is an analog equaliser preamp with some gain that manipulates the left and right signals in an out-of-phase sort of way that expands the soundstage and instrument images in a very significant way. And this, to my ears and in my system, is to an unbearable degree.
But to be fair to everyone, you pay for whatever floats your boat. If you like the sound, enjoy. If not, return it. And there will be peace all round in this most peaceful of hobbies.

Jon2020,
Yes, my system is very resolving and has reached a level of continuity and holography that I really never thought it would reach.

Thank you for your observations. I find them very informative. In fact, they are so detailed that I wonder why they have never been reported in similar way before. Is no one else hearing what you are reporting here? Are your observations specific only to your system?

The only reports I have read about the QOL are either glowing ones -- with few specifics -- or vaguely negative ones where the individual decided to return the QOL.

Sabai,
Yes, my experience is specific only to my system which is likewise quite resolving. So, it may sound different in another system which may turn out to be a positive experience for the owner. As the cliche goes, to each his own.

A few of my comments on the Qol.

First off everyone thinks that there systems are very resolving so to me that has nothing to do with whether you will be impressed by the Qol.
The better the system the more the Qol will impress.

Next, using the Qol will require moving your speakers closer together otherwise you will get the effect of too much extreme right or left. I didn't have to move mine much, perhaps 6" each but that totaled a foot closer. Depending upon your room and how far apart your speakers are to start with you may have to move them even closer together.

You will need another interconnect that is at least the equal of your other interconnects. Otherwise you are not hearing the full potential.
I am using mine with my HiDiamond Interconnects and power cords.

And finally, the cost of the Qol makes us not want to like it. I know I was trying to figure out how it was not to my liking so I could save my money. But in the end, I had to give in to the fact that the Qol really added a dimension to the music that brought it closer to real live music sounding.

I couldn't be happier with the Qol.
But as what has already been posted "to each his own".

Don't let other opinions make your decision to not try it.

Ozzy,
I wish you well in your pursuit of happiness.